15NiCuMoNb5-6-4

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Chemical composition %   of   steel   (15NiCuMoNb5-6-4):   EN 10028-2-2003
C Si Mn Ni P S Cr Mo N Nb Al Cu
max   0.17 0.25 - 0.5 0.8 - 1.2 1 - 1.3 max   0.025 max   0.01 max   0.3 0.25 - 0.5 max   0.02 0.015 - 0.045 max   0.015 0.5 - 0.8


Mechanical properties of   steel   (15NiCuMoNb5-6-4)

Nominal thickness (mm):   to 60 60 - 100 100 - 150 150 - 200
Rm - Tensile strength (MPa) 610-780 600-760 590-740 580-740


Nominal thickness (mm):   to 40 40 - 60 60 - 100 100 - 150 150 - 200
ReH - Minimum yield strength (MPa) 460 440 430 420 410


KV - Impact energy (J) transverse, -20°
27

34
+20°
27-40


A - Min. elongation at fracture (%) 16-19



15NiCuMoNb5-6-4